On Fri, 17 Feb 2006 12:44:46 +0000, Kate wrote:

|
|Englishman in Adana (Turkey) wrote:
|
|
|Can anyone suggest a method to stop this? We cannot fix them in the
|middle with a horizontal bar because of safety regulations. I was
|thinking of something like the dampers used on high-voltage lines to
|stop the conductors vibrating (see http://tinyurl.com/bobpo for
|details).
|
|Is there anywhere on the 'net that can calculate the weight required?
|
|TIA for any help...
|
|Firstly, although I don't know how to crunch the numbers, I'm sure a
|metal bar 1 cm in diameter will be too 'stiff' to vibrate at audio
|frequencies, if just driven by air blowing over them at right angles.

OP does not say they are *solid* metal, Tubes would resonate.

--
Dave Fawthrop dave hyphenologist co uk
Freedom of Speech, Expression, Religion, and Democracy are
the keys to Civilization, together with legal acceptance of
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